<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Simple Pie</title>

    <link href="../../assets/styles.css" rel="stylesheet" />

    <style>
      
        #chart {
      max-width: 480px;
      margin: 35px auto;
      padding: 0;
    }
    .actions {
      top: -10px;
      position: relative;
      z-index: 10;
      max-width: 400px;
      margin: 0 auto;
    }
    button {
      color: #fff;
      background: #20b2aa;
      padding: 5px 10px;
      margin: 2px;
      font-weight: bold;
      font-size: 13px;
      border-radius: 5px;
    }
    p {
      margin: 10px 0;
    }
    @media only screen and (max-width: 480px) {
      .actions {
        margin-top: 0;
        left: 0
      }
    }
      
    </style>

    <script>
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js"><\/script>'
        )
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/eligrey-classlist-js-polyfill@1.2.20171210/classList.min.js"><\/script>'
        )
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/findindex_polyfill_mdn"><\/script>'
        )
    </script>

    
    <script src="../../../dist/apexcharts.js"></script>
    

    <script>
      // Replace Math.random() with a pseudo-random number generator to get reproducible results in e2e tests
      // Based on https://gist.github.com/blixt/f17b47c62508be59987b
      var _seed = 42;
      Math.random = function() {
        _seed = _seed * 16807 % 2147483647;
        return (_seed - 1) / 2147483646;
      };
    </script>

    
  </head>

  <body>
     <div>
        <div class="chart-wrap">
          <div id="chart"></div>
        </div>
      
        <div class="actions">
          <button
              id="add"
              
              >
            + ADD
          </button>
          
          <button
              id="remove"
              
              >
            - REMOVE
          </button>
          
          <button
              id="randomize"
              
              >
            RANDOMIZE
          </button>
          
          <button
              id="reset"
              
              >
            RESET
          </button>
        </div>
      </div>

    <script>
      
        var options = {
          series: [44, 55, 13, 33],
          chart: {
          width: 380,
          type: 'donut',
        },
        dataLabels: {
          enabled: false
        },
        responsive: [{
          breakpoint: 480,
          options: {
            chart: {
              width: 200
            },
            legend: {
              show: false
            }
          }
        }],
        legend: {
          position: 'right',
          offsetY: 0,
          height: 230,
        }
        };

        var chart = new ApexCharts(document.querySelector("#chart"), options);
        chart.render();
      
      
        function appendData() {
        var arr = chart.w.globals.series.slice()
        arr.push(Math.floor(Math.random() * (100 - 1 + 1)) + 1)
        return arr;
      }
      
      function removeData() {
        var arr = chart.w.globals.series.slice()
        arr.pop()
        return arr;
      }
      
      function randomize() {
        return chart.w.globals.series.map(function() {
            return Math.floor(Math.random() * (100 - 1 + 1)) + 1
        })
      }
      
      function reset() {
        return options.series
      }
      
      document.querySelector("#randomize").addEventListener("click", function() {
        chart.updateSeries(randomize())
      })
      
      document.querySelector("#add").addEventListener("click", function() {
        chart.updateSeries(appendData())
      })
      
      document.querySelector("#remove").addEventListener("click", function() {
        chart.updateSeries(removeData())
      })
      
      document.querySelector("#reset").addEventListener("click", function() {
        chart.updateSeries(reset())
      })
      
    </script>

    
  </body>
</html>
